Plant Comparison
Oyster mushroom vs Heartsease
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
Oyster mushroom and Heartsease: they share 6 indicated uses (arthritis / joint pain, cancer (anticancer research), cold & flu, …); 3 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Oyster mushroom | Heartsease | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 5/10 | 2/10 | Stronger for Oyster mushroom |
| Cancer (anticancer research) | 8/10 | 2/10 | Stronger for Oyster mushroom |
| Cold & flu | 6/10 | 2/10 | Stronger for Oyster mushroom |
| Immune support | 7/10 | 2/10 | Stronger for Oyster mushroom |
| Inflammation (general) | 5/10 | 3/10 | Stronger for Oyster mushroom |
| Skin irritation | 5/10 | 1/10 | Stronger for Oyster mushroom |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
The principal bioactive constituents, responsible for most of the mushroom's immunomodulatory and anticancer activity.
Contribute to immunomodulatory activity alongside the pure beta-glucans.
Contribute to the antioxidant activity of the fruiting body.
Bioactive cyclic peptides shown to suppress over-active immune (T-cell) responses - the rationale for use in inflammatory skin disease; the cytotoxic cyclotides vitri A, varv A and varv E have been isolated from V. tricolor. Cyclotide-enriched preparations (including hot-water decoctions) reduce T-cell proliferation and macrophage cytokine output in vitro, of interest for inflammatory bowel disease.
Pharmacological Actions
Anti-inflammatory / immunomodulatory for chronic skin conditions - eczema, psoriasis, itching and scabs (traditional, supported by cyclotide research) - cyclotide-enriched V. tricolor preparations suppress T-cell proliferation and pro-inflammatory cytokine secretion in vitro; Soothes irritated skin (demulcent and anti-inflammatory)
Cytotoxic / antiproliferative against cancer cell lines in vitro (cyclotides vitri A, varv A and varv E)
Soothes irritated skin (demulcent and anti-inflammatory); Traditional demulcent / expectorant for cough, bronchitis and chest inflammation
Traditional demulcent / expectorant for cough, bronchitis and chest inflammation
Anti-inflammatory / immunomodulatory for chronic skin conditions - eczema, psoriasis, itching and scabs (traditional, supported by cyclotide research) - cyclotide-enriched V. tricolor preparations suppress T-cell proliferation and pro-inflammatory cytokine secretion in vitro
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from antidiabetic action
inferred from anticancer action
inferred from anti-inflammatory action
inferred from antidiabetic action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
Traditional demulcent / expectorant for cough, bronchitis and chest inflammation
inferred from anticancer action
Traditional demulcent / expectorant for cough, bronchitis and chest inflammation
Anti-inflammatory / immunomodulatory for chronic skin conditions - eczema, psoriasis, itching and scabs (traditional, supported by cyclotide research) - cyclotide-enriched V. tricolor preparations suppress T-cell proliferation and pro-inflammatory cytokine secretion in vitro
inferred from immunomodulator action
Traditional demulcent / expectorant for cough, bronchitis and chest inflammation
Anti-inflammatory / immunomodulatory for chronic skin conditions - eczema, psoriasis, itching and scabs (traditional, supported by cyclotide research) - cyclotide-enriched V. tricolor preparations suppress T-cell proliferation and pro-inflammatory cytokine secretion in vitro
inferred from expectorant action
Soothes irritated skin (demulcent and anti-inflammatory)
Safety, Cautions & Contraindications
Generally very safe as a food. Rare cases of occupational asthma and allergy reported among people working with mushroom cultivation. Safe for culinary use without significant known interactions.
Regarded as safe in customary traditional use; because the extract suppresses immune-cell activity, there is a theoretical caution when taking immunosuppressant medicines.
Contains salicylates, so use caution if you are salicylate-sensitive; safety in pregnancy and breastfeeding is not established.
External Ids
Botanical Description
Wood-decay fungus (not a true plant, Pleurotaceae) that grows in shelf-like, overlapping clusters on dead or dying hardwood trees and stumps. Fan- or oyster-shell-shaped caps, 5-25 cm across, are usually grey, tan or brown (occasionally pale or white), with white gills running down a short, off-centre stem. The mycelium is a fine white network that colonises and decomposes the wood substrate before fruiting.
Small, low-growing annual or short-lived perennial herb with oval to lance-shaped, scalloped leaves and large, leaf-like stipules. The distinctive flowers are tricoloured - purple, yellow and white in varying combinations - with five petals, the lower petal often marked with dark veining (a 'face' pattern), giving rise to the name 'heartsease'.[9]
Habitat
Grows naturally on dead or dying broadleaf (hardwood) trees - beech, oak, poplar and others - in temperate forests worldwide; widely cultivated commercially on straw, sawdust and other lignocellulosic substrates.
Grows in grassland, cultivated ground, gardens and waste places on a wide range of soils; native to Europe and widely naturalised elsewhere as a common garden and wild plant.[9]
Harvesting
Wild fruiting bodies are picked as the caps mature but before they become tough or insect-damaged; cultivated mushrooms are harvested from substrate blocks or bags once the caps have expanded but before releasing significant spore load. Never forage a white shelf-fungus from wood without confirming the host tree, since the fatal Angel Wing look-alike is specific to conifer (softwood) wood.[14]
The flowering aerial parts are cut in summer while in flower and dried in a warm, shaded, airy place.[9]
Traditional Uses
Oyster mushroom is a widely eaten culinary mushroom with a growing modern reputation as a medicinal fungus, valued for immune support and general wellbeing. Contemporary research on its beta-glucan polysaccharides supports immunomodulatory, antioxidant, anticancer and cardiometabolic activity.[1, 5]
Heartsease has a long European folk history as a soothing remedy for skin conditions such as eczema and itching, and as a traditional demulcent and expectorant for coughs and chest complaints; this traditional skin-supportive use is now linked to immunomodulatory cyclic peptides (cyclotides) unique to the Viola genus.[9]
Preparations
Dosage
The EU herbal monograph gives, for oral use in adults and elderly, 3 g of the comminuted herb as an infusion 1-3 times daily. For cutaneous use, 5-20 g/L as an infusion applied as a wet dressing 2-3 times daily, or 5-10 g/L as a bath additive (1 litre of infusion per bath). Contraindicated in hypersensitivity to salicylates, and cutaneously on open wounds or large areas of damaged skin. Oral use not recommended under 18 years. Educational reference only, not a prescription.
References
Lookalikes Review
Dangerous Lookalikes
Not documented
References & Sources
- Motta, F., Gershwin, M.E. and Selmi, C (2021) 'Mushrooms and immunity', Journal of Autoimmunity, 117, pp. 102576. doi:10.1016/j.jaut.2020.102576 Meta-analysis / review
https://doi.org/10.1016/j.jaut.2020.102576 - Toros, G., El-Ramady, H., Prokisch, J., Velasco, F. and others (2023) 'Modulation of the Gut Microbiota with Prebiotics and Antimicrobial Agents from Pleurotus ostreatus Mushroom', Foods, 12(10), pp. 2010. doi:10.3390/foods12102010 Preclinical
https://doi.org/10.3390/foods12102010 - Mishra, V., Tomar, S., Yadav, P. and Singh, M.P (2021) 'Promising anticancer activity of polysaccharides and other macromolecules derived from oyster mushroom (Pleurotus sp.): An updated review', International Journal of Biological Macromolecules, 182, pp. 1628-1637. doi:10.1016/j.ijbiomac.2021.05.102 Meta-analysis / review
https://doi.org/10.1016/j.ijbiomac.2021.05.102 - Gu, Y.H. and Sivam, G (2006) 'Cytotoxic effect of oyster mushroom Pleurotus ostreatus on human androgen-independent prostate cancer PC-3 cells', Journal of Medicinal Food, 9(2), pp. 196-204. doi:10.1089/jmf.2006.9.196 Preclinical
https://doi.org/10.1089/jmf.2006.9.196 - Sharma, A., Sharma, A. and Tripathi, A (2021) 'Biological activities of Pleurotus spp. polysaccharides: A review', Journal of Food Biochemistry, 45(6), pp. e13748. doi:10.1111/jfbc.13748 Meta-analysis / review
https://doi.org/10.1111/jfbc.13748 - Krupodorova, T., Barshteyn, V., Tsygankova, V., Sevindik, M. and others (2024) 'Strain-specific features of Pleurotus ostreatus growth in vitro and some of its biological activities', BMC Biotechnology, 24(1), pp. 9. doi:10.1186/s12896-024-00834-9 Preclinical
https://doi.org/10.1186/s12896-024-00834-9 - Perez-Bassart, Z., Bauerl, C., Fabra, M.J., Martinez-Abad, A. and others (2023) 'Composition, structural properties and immunomodulatory activity of several aqueous Pleurotus beta-glucan-rich extracts', International Journal of Biological Macromolecules, 253(Pt 6), pp. 127255. doi:10.1016/j.ijbiomac.2023.127255 Preclinical
https://doi.org/10.1016/j.ijbiomac.2023.127255 - Dos Santos, J.F., de Oliveira, N.M.T., da Silva Milhorini, S., Rutckeviski, R. and others (2025) 'The use of Pleurotus ostreatus by-products for the preparation of a gel-like polysaccharide with bioactive properties', International Journal of Biological Macromolecules, 301, pp. 140236. doi:10.1016/j.ijbiomac.2025.140236 Preclinical
https://doi.org/10.1016/j.ijbiomac.2025.140236 - Huang, X. and Nie, S (2015) 'The structure of mushroom polysaccharides and their beneficial role in health', Food & Function, 6(10), pp. 3205-3217. doi:10.1039/c5fo00678c Meta-analysis / review
https://doi.org/10.1039/c5fo00678c - Drezek, J. and Mozejko-Ciesielska, J (2025) 'Production of beta-Glucans by Pleurotus ostreatus: Cultivation and Genetic Background', International Journal of Molecular Sciences, 26(19), pp. 9703. doi:10.3390/ijms26199703 Preclinical
https://doi.org/10.3390/ijms26199703 - Spacek, J., Vocka, M., Zavadova, E., Konopasek, B. and Petruzelka, L (2021) 'Immunomodulation with beta-glucan from Pleurotus ostreatus in patients with endocrine-dependent breast cancer', Immunotherapy, 14(1), pp. 31-40. doi:10.2217/imt-2021-0069 Clinical study
https://doi.org/10.2217/imt-2021-0069 - Majtan, J (2012) 'Pleuran (beta-glucan from Pleurotus ostreatus): an effective nutritional supplement against upper respiratory tract infections?', Medicine and Sport Science, 59, pp. 57-61. doi:10.1159/000341967 Clinical study
https://doi.org/10.1159/000341967 - Gariboldi, M.B., Marras, E., Ferrario, N., Vivona, V., Prini, P., Vignati, F. and Perletti, G (2023) 'Anti-Cancer Potential of Edible/Medicinal Mushrooms in Breast Cancer', International Journal of Molecular Sciences, 24(12), pp. 10120. doi:10.3390/ijms241210120 Preclinical
https://doi.org/10.3390/ijms241210120 - Gonmori, K. and Yokoyama, K (2009) 'Acute encephalopathy caused by cyanogenic fungi in 2004, and magic mushroom regulation in Japan', Chudoku Kenkyu, 22(1), pp. 61-9. Available at: https://pubmed.ncbi.nlm.nih.gov/19344063/ Clinical study
https://pubmed.ncbi.nlm.nih.gov/19344063/ - Wasser, S.P (2011) 'Current findings, future trends, and unsolved problems in studies of medicinal mushrooms', 89(5), pp. 1323--1332. doi:10.1007/s00253-010-3067-4 Randomized trial
https://doi.org/10.1007/s00253-010-3067-4 - Guillamon, E. et al (2010) 'Edible mushrooms: role in the prevention of cardiovascular diseases', 81(7), pp. 715--723. doi:10.1016/j.fitote.2010.06.005 Clinical study
https://doi.org/10.1016/j.fitote.2010.06.005 - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - Yamamoto, N. and Suzuki, T. and Kobayashi, M. and others (2014) 'A-WINGS: an integrated genome database for Pleurocybella porrigens (angel's wing oyster mushroom, Sugihiratake)', BMC Research Notes, 7, pp. 866. doi:10.1186/1756-0500-7-866 Preclinical
https://doi.org/10.1186/1756-0500-7-866 - Mushroom Appreciation (2024) 'Angel wings vs oyster mushrooms: identification and controversy'. Available at: https://www.mushroom-appreciation.com/angel-wings-identification.html Traditional / reference
https://www.mushroom-appreciation.com/angel-wings-identification.html - Sugano, Y. and Sakata, K. and Nakamura, K. and others (2017) 'Rapid identification method of Omphalotus japonicus by PCR-RFLP', Shokuhin Eiseigaku Zasshi, 58(3), pp. 113-123. doi:10.3358/shokueishi.58.113 Preclinical
https://doi.org/10.3358/shokueishi.58.113 - Kasahara, Y (2013) 'Clinical toxicology of mushroom poisoning: Omphalotus guepiniformis', Chudoku Kenkyu, 26(3), pp. 215-8. Available at: https://pubmed.ncbi.nlm.nih.gov/24224384/ Clinical study
https://pubmed.ncbi.nlm.nih.gov/24224384/ - Mushroom Appreciation (2024) 'The jack o'lantern mushroom (Omphalotus olearius)'. Available at: https://www.mushroom-appreciation.com/omphalotus-olearius.html Traditional / reference
https://www.mushroom-appreciation.com/omphalotus-olearius.html
- Retzl, B., Zimmermann-Klemd, A.M., Winker, M., Nicolay, S., Grundemann, C. and Gruber, C.W (2023) 'Exploring Immune Modulatory Effects of Cyclotide-Enriched Viola tricolor Preparations', Planta Medica, 89(15), pp. 1493--1504. doi:10.1055/a-2173-8627 Preclinical
https://doi.org/10.1055/a-2173-8627 - Harati, E., Bahrami, M., Razavi, A., Kamalinejad, M. and others (2018) 'Effects of Viola tricolor Flower Hydroethanolic Extract on Lung Inflammation in a Mouse Model of Chronic Asthma', Iranian Journal of Allergy, Asthma, and Immunology, 17(5), pp. 409-417. doi:10.18502/ijaai.v17i5.299 Preclinical
https://doi.org/10.18502/ijaai.v17i5.299 - Sadeghnia, H.R., Ghorbani Hesari, T., Mortazavian, S.M., Mousavi, S.H. and others (2014) 'Viola tricolor induces apoptosis in cancer cells and exhibits antiangiogenic activity on chicken chorioallantoic membrane', BioMed Research International, 2014, pp. 625792. doi:10.1155/2014/625792 Preclinical
https://doi.org/10.1155/2014/625792 - Mousavi, S.H., Naghizade, B., Pourgonabadi, S. and Ghorbani, A (2016) 'Protective effect of Viola tricolor and Viola odorata extracts on serum/glucose deprivation-induced neurotoxicity: role of reactive oxygen species', Avicenna Journal of Phytomedicine, 6(4), pp. 434-441. Preclinical
https://scholar.google.com/scholar?q=Protective%20effect%20of%20Viola%20tricolor%20and%20Viola%20odorata%20extracts%20on%20serum/glucose%20deprivation-induced%20neurotoxicity%3A%20role%20of%20reactive%20oxygen%20species - Witkowska-Banaszczak, E., Bylka, W., Matlawska, I., Goslinska, O. and Muszynski, Z (2005) 'Antimicrobial activity of Viola tricolor herb', Fitoterapia, 76(5), pp. 458-461. doi:10.1016/j.fitote.2005.03.005 Preclinical
https://doi.org/10.1016/j.fitote.2005.03.005 - Baradaran Rahimi, V., Askari, V.R., Hosseini, M., Yousefsani, B.S. and Sadeghnia, H.R (2019) 'Anticonvulsant Activity of Viola tricolor against Seizures Induced by Pentylenetetrazol and Maximal Electroshock in Mice', Iranian Journal of Medical Sciences, 44(3), pp. 220-226. Preclinical
https://scholar.google.com/scholar?q=Anticonvulsant%20Activity%20of%20Viola%20tricolor%20against%20Seizures%20Induced%20by%20Pentylenetetrazol%20and%20Maximal%20Electroshock%20in%20Mice - Piana, M., Silva, M.A., Trevisan, G., de Brum, T.F. and others (2013) 'Antiinflammatory effects of Viola tricolor gel in a model of sunburn in rats and the gel stability study', Journal of Ethnopharmacology, 150(2), pp. 458-465. doi:10.1016/j.jep.2013.08.040 Preclinical
https://doi.org/10.1016/j.jep.2013.08.040 - Han, B.Y., Wang, Z.L., Li, J., Jin, Q. and others (2023) 'A highly selective C-rhamnosyltransferase from Viola tricolor and insights into its mechanisms', Acta Pharmaceutica Sinica B, 13(8), pp. 3535-3544. doi:10.1016/j.apsb.2023.05.011 Preclinical
https://doi.org/10.1016/j.apsb.2023.05.011 - Hellinger, R., Koehbach, J., Fedchuk, H., Sauer, B., Huber, R., Gruber, C.W. and Grundemann, C (2013) 'Immunosuppressive activity of an aqueous Viola tricolor herbal extract', Journal of Ethnopharmacology, pp. 2013. doi:10.1016/j.jep.2013.10.044 Traditional / reference
https://doi.org/10.1016/j.jep.2013.10.044 - Kirichenko, T.V., Sobenin, I.A., Nikolic, D., Rizzo, M. and Orekhov, A.N (2015) 'Anti-cytokine therapy for prevention of atherosclerosis', Phytomedicine, 23(11), pp. 1198-1210. doi:10.1016/j.phymed.2015.12.002 Clinical study
https://doi.org/10.1016/j.phymed.2015.12.002 - Conzelmann, C., Muratspahic, E., Tomasevic, N., Munch, J. and Gruber, C.W (2022) 'Inhibition of HIV-1 by Cyclotide-Enriched Extracts of Viola tricolor', Frontiers in Pharmacology, 13, pp. 888961. doi:10.3389/fphar.2022.888961 Preclinical
https://doi.org/10.3389/fphar.2022.888961 - Maraschio, A., Wulhfard, K. and Monsellato, L (2023) 'Case study of clinical improvement of atopic dermatitis in a patient treated with herbal-based parapharmaceuticals', Journal of Complementary & Integrative Medicine, 20(2), pp. 504-511. doi:10.1515/jcim-2023-0005 Clinical study
https://doi.org/10.1515/jcim-2023-0005 - Svangard, E. and Goransson, U. and Hocaoglu, Z. and Gullbo, J. and Larsson, R. and Claeson, P. and Bohlin, L (2004) 'Cytotoxic cyclotides from Viola tricolor', Journal of Natural Products, 67(2), pp. 144--147. doi:10.1021/np030101l Preclinical
https://doi.org/10.1021/np030101l - European Medicines Agency (HMPC) (2010) 'Community herbal monograph on Viola tricolor L. and/or subspecies Viola arvensis Murray (Gaud) and Viola vulgaris Koch (Oborny), herba cum flore'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-viola-tricolor-l_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-viola-tricolor-l_en.pdf
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.